Horse racing-Maximum Security wins 145th Kentucky Derby

The 4-1 favourite has won all five of its starts and delivered trainer Jason Servis his first win in the annual 'Run for the Roses,' which is the first leg of U.S. thoroughbred racing's Triple Crown series for three-year-olds.

Longshot Country House was second and Code of Honor finished third.

The field was one of the most wide open in years after favourite Omaha Beach was scratched on Friday due to a breathing problem.

The 1-1/4 mile race, called the "fastest two minutes in sports," featured the largest guaranteed purse of $3 million and played out before more than 150,000 fans that packed the grandstands and infield of Churchill Downs.

(Reporting by Rory Carroll; Editing by Peter Rutherford )